Machine for molding building-blocks.



IATENTEDl OCT. 3, 1905.

J. A. NOBLE. MACHINE FOR MOLDING BUILDING BLOCKS.

APPLIOATION I'ILEDVOOT.Z8,1904.

3 SHEETS-SHEBT 2.

V ma

` INVENTOR Alim/Weyl.

No. 800,750. PATENTED 00T. 3, 1905. J; A. NOBLE.

MACHINE FOR MOLDING BUILDING BLOCKS.

APPLICATION NLRB 000320.19011.

3 SHEETS-SHEET a.

Alim/Weyl.

UNITED sTATEs PATENT espion.

.IOSIAI-I A. NOBLE, OF FOSTORIA, OIIIO.

MACHINE FOR IVIOLDING BUILDING-BLOCKS.

To (LH 'lolz/om, it 771//1/'7/ concern:

Be it known that I, J osIAH A. NOBLE. a cit i zen of the United States,residing at Fostoria, in the county of Seneca and State of Ohio. haveinvented new and useful Improvements in Machines for h/Ioldin'gBuilding-Blocks, of which the following` is a specilication.

This invention is a machine for the manufacture of building-blocks,particularly hollow blocks made of cement or other plastic mate: rial;and it has for its object to produce an intl proved machine of the kindcharacterized palticularly by ease and rapidity of operation and byimproved means for inserting the core.4

or cores into the mold-box and withdrawi"'' the same therefrompreparatory to the removal of the finished block. The mold-box hasseparable sides, at least one of which is adjustable to vary the size ofthe block, and the parts so connected that when the cores are insertedor removed the sides are automatically closed or separated, as will morefully appear hereinafter.

In the accompanying drawings, Figure l is a perspective view of themachine with the cores retracted and the sides of the mold open orseparated. Fig. 2 is a similar view showing the mold closed. Fig. 3 is avertical crossseetion. Fig. 4 is a vertical longitudinal section on theline 4 4 of Fig. 8. Fig. 5 is a detail in elevation of the rearside ofthe machine and part of the supporting-frame. Fig'. 6 is a detail inperspective showing the joint between an end and the back of the mold.

Referring specifically to the drawings, 6 indicates the frame of themachine, which is of suitable size .and construction to support andguide the operative parts to be hereinafter described. A core plate orbar is indicated at 7. carrying a series of cores 8. The core-plate isslotted, as at 7, so that the cores may be located at any desiredposition along the plate and the number of cores varied as desired. Theyare fastened in place by bolts, (indicated at 8,) which extend throughthe slots 7 The end of the core-plate has cast to it vertical guide-ribs9, which slide in ways 10, produced in the ends of the frame of themachine. At each end upon the top of the core-plate there is bolted adog l1. This core plate or bar is slidable vertically and is raised orlowered by the levers l2, pivotally connected to lugs 13, depending` atthe ends thereof. The levers are pivoted at 14 to the end frames of themachine. The guides 9 and lO maintain true vertical movement of thecore-plate.

Specification ff Letters Patent.

Application iilel October 28, 1904:. Serial No. 230,333.

Patented Oct. 3, 1905.

The core-box includes two end plates 15 and a back plate 16, which arehinged to the frame of the machine. These form three sides of the mold.The fourth side is formed b v a removis indicated at 21. It rests uponthe lower arm of' the angular levers 19 and has suitable openp ings through which the cores 8 may be inserted and removed. Obviously when thenumber or location of the cores is changed a suitable bottom board mustbe provided.

The hinges of the backboard 16 ofthe moldbox are indicated at 22, andthe hinges of the end boards are indicated at 23. The backboard I6 has aprojecting arm 24, which is connected by a chain 25 to the core-plate 7.A spring 26, between the arm 24 land a rear cross-bar 6" of the frame,normally tends to close or swing in the backboard I6. Projecting fromeach of the end boards 15 is a cam 27, which is properly positioned torest upon the plane top of the core-bar 7 and engage under the dog Ilwhen the core-bar is raised.

Vhen the levers 12 are depressed, the coreplate and cores are lifted,the latter passing through the openings inv the bottom plate of the moldinto the mold. This movement slacks the chain 25, and the spring 26 eX-panding closes the back plate IG into a vertical position. At a higherpoint in its movement the core-bar strikes the cams 27 and turns the endplates 15 into the vertical position, the lips 15 on the end platesengaging the bevels 16 at the upper corners of the back plate 16, whichcorrect any variation in position of the plates and adjusts and holdsthem securely together. Vhen the levers reach their lowest point, theyare held by a suitable catch 28. The mold is then ready to receive thecement. Vhen the block is sufficiently set, the levers l2 are raised.This draws down the core-plate7 and cores 8. freeing them from the.newly-made block which rests upon the bottom plate 2l. As the coreplatedescends the dogs Il en'gage the end of the cams 27, tilting the endplates 15 away from the block and freeing the beveled corners 16 fromthe lips l5. At a further point in its descent the slack of the chain 25is taken up and it pulls down on the arm 24,

IOO

IOS

IIO

which swings out the plate 16 and irees it from the block. It will beseen that all this is automatic with the descent of the coreplate.rIhcnewly-anule block now rests upon the bottom plate Q1 and against theboard or pallet 17, which forms one side wall ot' the mold. Thehand-levers 19 are then swung out and down upon the rock-shaft 2O untilthey rest upon the cross-bar 6". as shown in Fig. 1. This turns theblock on its side, so that it rests upon the pallet 17, and resting uponsaid pallet is lifted lfrom the machine and conveyed away. Anotherpallet is then substituted, the bottom board swung back to horizontalposition, and the operation repeated.

'Ihe configuration ot' parts may be varied to suit the kind ot' blocksbeing molded. 'Ihe ai'ljustable slides 18 permit the width or thicknessof the block to be varied.

'lhe levers 12 are conveniently operatedl by foot-power and the levers19 by hand, so that one man can operate the machine, and the opening andclosing of the mold being automatic rapid action is possible.

\Vhat l claim as new, and desire to secure by Letters Iatent, is4

1. In a block-molding machine, the combination with a [ixed frame, andseparable side plates hinged thereto, ot' a tilting' bottom plate withwhich one of the side plates is movable away from the remaining sideplates, to remove the block Vfrom the mold.

2. A block-molding machine having separable bottom and side plates, thebottom plate and one of the side plates being tiltable independent ot',and away from, the remaining side plates, to turn the block out of themold, upon the said side plate.

3. In a block-molding machine, the combination of separable bottom andside plates, the bottom plate having openings, and vcores rcmovablethrough said openings, the bottom plate and one oi' the side platesbeing tiltable independent of, and away from, the remaining side plates,to turn the block out of the mold, upon the said plate.

4f. In a block-moldingI machine, in combination, a frame, separable sideplates hinged thereto`I and a tilting' bottom and removable side platemounted. to rock together on the Jrame away lrom the remaining sideplates, to turn the block out oli the mold and upon the said removableplate.

5. A mold having sides and a bottom plate, the bottom plate and one ofthe sides being tiltable together and away from the remainingl sides, toturn the block out of the mold.

6. In a molding-machine, in combination, a frame, a mold therein havinghinged side plates and a bottom plate with openings therein, acore-plate slidable vertically in the trame, under the bottom plate. andcarrying cores movable through said openings, and having ends extendingbeyond the sides of the mold, and cams secured to the side plates andarranged to be struck by the said ends o'l'l the core-plate.

7. In a block-molding machine, the combination with separable sideplates, of a bottom plate -tiltable together with one of the side platesand levers carrying the said bottoni plate and side plate, to tilt thesame, the lattt: being adjustable with respect to the other parts, tovary the size of the mold.

In a block-molding machine, the combin nation with the frame, and theseparable side and end plates thereon, of the bent levers fulcrumed onthe frame, a bottom plate carried on the levers, adjustable bracketssecured to the levers, and a side plate supported by the brackets.

9. In a block-molding machine, a mold having hinged side plates, and amovable plate having ends extending beyond the sides ol the mold andcarrying cores which are movable into and out of the mold, the sideplates having vprojections which extend into the path of the ends of thecoreplate, and dogs on the ends of the said plate, arranged to engagesaid projections, to open and close the side plates according to theoperation of the core-plate.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

JOSIAH A. NOBLE.

Witnesses:

WILLiAM D. I-Inokifiuir, Es'inLLA V. ZncHIEL.

